Sample: 73ARh34

Sample ID:	73ARh34 ^[1]
Station ID:	73ARh34
AT Num:
Volcano:	Drum
Possible source:
Eruption:
Collector:	Richter, D. H.
Date sampled:	1973-00-00
Sample type 1:	Lava
Color:
Final unit:
Text Description:	Dacite Dikes. Generally associated with rhyolite and rhyodacite domes (Qrd, Qrdd) of first cycle of activity, but some (secs. 14 and 15, T. 3 N., R. 4 E.) may be younger and related to Snider Peak activity. All dikes sampled are medium to dark gray and sparsely porphyritic with small phenocrysts of plagioclase, hornblende, and locally rare biotite and hypersthene in a dense pilotaxitic to trachytic or dark cryptocrystalline groundmass.
Sample Location:

References Cited

[1] Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex, 1997

Preece, S. J., 1997, Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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